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Cheap flights from Philadelphia to Great Falls from $280

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Philadelphia to Great Falls departing on 8/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Philadelphia to Great Falls

Cheap round-trip flights

Enter your travel dates to find the best prices.
Alaska Airlines Logo
6:59 pm - 4:39 pm
PHL
-
GTF
23h 40m
1 stop
Alaska Airlines Logo
5:19 pm - 5:40 am
GTF
-
PHL
10h 21m
1 stop
$338Alaska Airlines
Sat, Sep 12 - Mon, Sep 21
Delta Logo
7:20 am - 12:35 pm
PHL
-
GTF
7h 15m
1 stop
Delta Logo
6:20 pm - 5:41 am
GTF
-
PHL
9h 21m
1 stop
$348Delta
Mon, Oct 5 - Sun, Oct 11
Delta Logo
7:20 am - 12:35 pm
PHL
-
GTF
7h 15m
1 stop
Delta Logo
6:21 pm - 9:28 am
GTF
-
PHL
13h 07m
2 stops
$354Delta
Fri, Sep 25 - Mon, Sep 28
Delta Logo
3:10 pm - 10:44 pm
PHL
-
GTF
9h 34m
2 stops
Delta Logo
6:21 pm - 9:28 am
GTF
-
PHL
13h 07m
2 stops
$359Delta
Fri, Sep 11 - Tue, Sep 15
Delta Logo
5:30 am - 5:39 pm
PHL
-
GTF
14h 09m
2 stops
Delta Logo
6:21 pm - 6:05 am
GTF
-
PHL
9h 44m
1 stop
$379Delta
Sat, Sep 12 - Mon, Sep 21
Delta Logo
5:30 am - 5:39 pm
PHL
-
GTF
14h 09m
2 stops
Delta Logo
6:21 pm - 11:01 am
GTF
-
PHL
14h 40m
2 stops
$384Delta
Sat, Sep 12 - Mon, Sep 21
Alaska Airlines Logo
7:02 am - 4:45 pm
PHL
-
GTF
11h 43m
1 stop
Alaska Airlines Logo
5:19 pm - 5:40 am
GTF
-
PHL
10h 21m
1 stop
$388Alaska Airlines
Sun, Sep 6 - Sun, Sep 13
Delta Logo
5:30 am - 5:39 pm
PHL
-
GTF
14h 09m
2 stops
Delta Logo
6:21 pm - 6:05 am
GTF
-
PHL
9h 44m
1 stop
$409Delta
Sat, Sep 12 - Mon, Sep 21
Delta Logo
6:45 am - 5:39 pm
PHL
-
GTF
12h 54m
2 stops
Delta Logo
6:21 pm - 9:28 am
GTF
-
PHL
13h 07m
2 stops
$414Delta
Sat, Sep 12 - Mon, Sep 21
Delta Logo
5:30 am - 5:39 pm
PHL
-
GTF
14h 09m
2 stops
Delta Logo
6:21 pm - 6:05 am
GTF
-
PHL
9h 44m
1 stop
$419Delta
Sat, Sep 12 - Mon, Sep 21

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Delta flights from Philadelphia to Great Falls

Our best Delta deals on Philadelphia to Great Falls flight tickets
Delta
Oct 5
PHL7:20 amPhiladelphia
7h 15m
1 stop
GTF12:35 pmGreat Falls
Oct 11
GTF6:20 pmGreat Falls
9h 21m
1 stop
PHL5:41 amPhiladelphia
$348
Delta
Sep 25
PHL7:20 amPhiladelphia
7h 15m
1 stop
GTF12:35 pmGreat Falls
Sep 28
GTF6:21 pmGreat Falls
13h 07m
2 stops
PHL9:28 amPhiladelphia
$354
Delta
Sep 11
PHL3:10 pmPhiladelphia
9h 34m
2 stops
GTF10:44 pmGreat Falls
Sep 15
GTF6:21 pmGreat Falls
13h 07m
2 stops
PHL9:28 amPhiladelphia
$359

United Airlines flights from Philadelphia to Great Falls

Our best United Airlines deals on Philadelphia to Great Falls flight tickets
United Airlines
Jun 9
PHL6:10 amPhiladelphia
9h 31m
2 stops
GTF1:41 pmGreat Falls
Jun 13
GTF2:37 pmGreat Falls
6h 53m
1 stop
PHL11:30 pmPhiladelphia
$584
United Airlines
Jun 9
PHL8:00 amPhiladelphia
7h 41m
1 stop
GTF1:41 pmGreat Falls
Jun 13
GTF2:37 pmGreat Falls
6h 53m
1 stop
PHL11:30 pmPhiladelphia
$614
United Airlines
Oct 31
PHL1:00 pmPhiladelphia
11h 30m
2 stops
GTF10:30 pmGreat Falls
Nov 4
GTF6:15 amGreat Falls
14h 52m
2 stops
PHL11:07 pmPhiladelphia
$637

momondo Fare Finder

 
Customize your flight search to find flights from Philadelphia to Great Falls that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated June 8, 2026.
Use the filters below to find and compare flights from Philadelphia to Great Falls that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PhiladelphiaGreat Falls

PHL - GTF

PHLGTF

Philadelphia

Sat 9/12

6:59 pm-4:39 pm

1 stop23h 40m

Great Falls

Mon 9/21

5:19 pm-5:40 am

1 stop10h 21m

$338
Quickest round-trip

PhiladelphiaGreat Falls

PHL - GTF

PHLGTF

Philadelphia

Mon 10/5

7:20 am-12:35 pm

1 stop7h 15m

Great Falls

Sun 10/11

6:20 pm-5:41 am

1 stop9h 21m

$348

PhiladelphiaGreat Falls

PHL - GTF

PHLGTF

Philadelphia

Fri 9/25

7:20 am-12:35 pm

1 stop7h 15m

Great Falls

Mon 9/28

6:21 pm-9:28 am

2 stops13h 07m

$354

PhiladelphiaGreat Falls

PHL - GTF

PHLGTF

Philadelphia

Fri 9/11

3:10 pm-10:44 pm

2 stops9h 34m

Great Falls

Tue 9/15

6:21 pm-9:28 am

2 stops13h 07m

$359

PhiladelphiaGreat Falls

PHL - GTF

PHLGTF

Philadelphia

Sat 9/12

5:30 am-5:39 pm

2 stops14h 09m

Great Falls

Mon 9/21

6:21 pm-6:05 am

1 stop9h 44m

$379

PhiladelphiaGreat Falls

PHL - GTF

PHLGTF

Philadelphia

Sat 9/12

5:30 am-5:39 pm

2 stops14h 09m

Great Falls

Mon 9/21

6:21 pm-11:01 am

2 stops14h 40m

$384

PhiladelphiaGreat Falls

PHL - GTF

PHLGTF

Philadelphia

Sun 9/6

7:02 am-4:45 pm

1 stop11h 43m

Great Falls

Sun 9/13

5:19 pm-5:40 am

1 stop10h 21m

$388

PhiladelphiaGreat Falls

PHL - GTF

PHLGTF

Philadelphia

Sat 9/12

5:30 am-5:39 pm

2 stops14h 09m

Great Falls

Mon 9/21

6:21 pm-6:05 am

1 stop9h 44m

$409

PhiladelphiaGreat Falls

PHL - GTF

PHLGTF

Philadelphia

Sat 9/12

6:45 am-5:39 pm

2 stops12h 54m

Great Falls

Mon 9/21

6:21 pm-9:28 am

2 stops13h 07m

$414

PhiladelphiaGreat Falls

PHL - GTF

PHLGTF

Philadelphia

Sat 9/12

5:30 am-5:39 pm

2 stops14h 09m

Great Falls

Mon 9/21

6:21 pm-6:05 am

1 stop9h 44m

$419

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Great Falls from

How to get the cheapest flight ticket from Philadelphia to Great Falls

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Philadelphia and Great Falls?

What is the cheapest month to fly to Great Falls?

The month of March is another great option to travel to Great Falls, with average flight prices from Philadelphia averaging around $278.

Can stopping save me money on Philadelphia to Great Falls flights?

You could potentially save up to 7% on your flight if you consider stops on a Philadelphia to Great Falls flight.

When to book flights from Philadelphia to Great Falls

Are you open to changing your travel dates? Check out the ideal times to fly from Philadelphia to Great Falls according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Philadelphia to Great Falls (PHL to GTF) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Philadelphia to Great Falls

Fastest flight time

7h 15m

Direct flights

None
The fastest flight from Philadelphia to Great Falls takes 7h 15m
There are no direct flights from Philadelphia to Great Falls. There are no popular flight routes from Philadelphia to Great Falls.
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Frequently asked questions about flying from Philadelphia to Great Falls

  • How far is Philadelphia to Great Falls by plane?

    A flight from Philadelphia to Great Falls will travel around 1858.6 mi. Typically, this will take 7h 15m by plane in normal conditions.

  • When did momondo last update prices for flights from Philadelphia Airport to Great Falls Airport?

    Prices for flights from Philadelphia Airport to Great Falls Airport are updated daily.

  • How many operators does momondo search for flights from Philadelphia Airport to Great Falls Airport?

  • How old do you have to be to fly from Philadelphia Airport to Great Falls Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Philadelphia Airport to Great Falls Airport.

  • What documentation or ID do you need to fly to Great Falls Airport?

    The travel and health documents you'll need for your trip to Great Falls Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Great Falls Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Philadelphia to Great Falls?

Best airlines flying from Philadelphia to Great Falls

Compare and see reviews for airlines that fly from Philadelphia to Great Falls with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $259Free CancellationRating
7.9
8,398 reviews
Search Delta flights
United AirlinesPriceFrom $533Free CancellationRating
7.4
9,791 reviews
Search United Airlines flights

  • United Airlines Flights From Philadelphia to Great Falls

    United Airlines flight deals from Philadelphia to Great Falls start from $533 round-trip. Over the 7 United Airlines flights for this route in a normal week, average airfare is usually $688 round-trip - but some users have found much cheaper deals with momondo.

Traveling to a place near Great Falls?

Book flights to Great Falls if you plan to visit one of these locations
Shelby

Why use momondo?

Why should I use momondo to find a flight deal from Philadelphia to Great Falls?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Great Falls from Philadelphia.

Can I find flights from Philadelphia to Great Falls with flexible booking policies on momondo?

Flights from Philadelphia to Great Falls with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Philadelphia to Great Falls?

Once you have performed a search for Philadelphia to Great Falls flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Philadelphia to Great Falls right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Philadelphia to Great Falls flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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